/*!	 dock_layers.cpp
**	 Template File
**
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**	Copyright (c) 2007, 2008 Chris Moore
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifdef USING_PCH
#	include "pch.h"
#else
#ifdef HAVE_CONFIG_H
#	include <config.h>
#endif

#include <synfig/general.h>

#include <glibmm/markup.h>

#include "docks/dock_layers.h"
#include "app.h"

#include <gtkmm/scrolledwindow.h>
#include <cassert>
#include "instance.h"
#include <sigc++/sigc++.h>
#include "trees/layertreestore.h"
#include "trees/layertree.h"
#include "canvasview.h"
#include "actionmanagers/layeractionmanager.h"

#include <gui/localization.h>

#endif

using namespace std;
using namespace etl;
using namespace synfig;
using namespace studio;

Dock_Layers::Dock_Layers():
    Dock_CanvasSpecific("layers", _("Layers"), Gtk::StockID("synfig-layer")),
    layer_action_manager(new LayerActionManager)
{
    if (layer_action_manager) {
        layer_action_manager->set_ui_manager(App::ui_manager());
    }

    action_group_new_layers = Gtk::ActionGroup::create("action_group_new_layers");
    action_group_layer_ops = Gtk::ActionGroup::create("action_group_layer_ops");

    std::map<synfig::String, synfig::String> category_map;

    // Build layer creation actions
    synfig::Layer::Book::iterator iter;

    for (iter = synfig::Layer::book().begin(); iter != synfig::Layer::book().end(); ++iter) {
        synfig::Layer::Book::value_type lyr(*iter);

        if (lyr.second.category == CATEGORY_DO_NOT_USE) {
            continue;
        }

        action_group_new_layers->add(Gtk::Action::create(
                                         strprintf("layer-new-%s", lyr.first.c_str()),
                                         layer_icon(lyr.first.c_str()),
                                         lyr.second.local_name, lyr.second.local_name
                                     ),
                                     sigc::hide_return(
                                         sigc::bind(
                                             sigc::mem_fun(*this, &studio::Dock_Layers::add_layer),
                                             lyr.first
                                         )
                                     )
                                    );

        category_map[lyr.second.category] += strprintf("<menuitem action='layer-new-%s' />", lyr.first.c_str());

    }

    {
        Glib::RefPtr<Gtk::ActionGroup> action_group_categories(Gtk::ActionGroup::create("layer-category"));
        synfig::String layer_ui_info;

        std::map<synfig::String, synfig::String>::iterator iter;

        for (iter = category_map.begin(); iter != category_map.end(); ++iter) {
            layer_ui_info += strprintf("<menu action='%s'>%s</menu>", iter->first.c_str(), iter->second.c_str());
            action_group_categories->add(Gtk::Action::create(iter->first.c_str(), dgettext("synfig", iter->first.c_str())));
        }

        App::ui_manager()->insert_action_group(action_group_categories);
        App::ui_manager()->insert_action_group(action_group_new_layers);

        try {
            synfig::String ui_info;
            ui_info = "<ui><popup action='menu-main'><menu action='menu-layer'><menu action='menu-layer-new'>"
                      + layer_ui_info
                      + "</menu></menu></popup></ui>";
            App::ui_manager()->add_ui_from_string(ui_info);
            ui_info = "<ui><menubar action='menubar-main'><menu action='menu-layer'><menu action='menu-layer-new'>"
                      + layer_ui_info
                      + "</menu></menu></menubar></ui>";
            App::ui_manager()->add_ui_from_string(ui_info);
        } catch (Glib::MarkupError x) {
            error("%s:%d caught MarkupError code %d: %s", __FILE__, __LINE__, x.code(), x.what().c_str());
            error("%s:%d with markup: \"%s\"", __FILE__, __LINE__, layer_ui_info.c_str());
            exit(1);
        }
    }

    if (layer_action_manager) {
        action_group_layer_ops->add(layer_action_manager->get_action_select_all_child_layers());
    }

    action_group_layer_ops->add(Gtk::Action::create("toolbar-layer", _("Layer Ops")));
    App::ui_manager()->insert_action_group(action_group_layer_ops);

    Glib::ustring ui_info =
        "<ui>"
        "	<toolbar action='toolbar-layer'>"
        "	<toolitem action='action-LayerRaise' />"
        "	<toolitem action='action-LayerLower' />"
        "	<separator />"
        "	<toolitem action='action-LayerDuplicate' />"
        "	<toolitem action='action-LayerEncapsulate' />"
        "	<toolitem action='select-all-child-layers' />"
        "	<toolitem action='action-LayerRemove' />"
        "	<separator />"
        "	<toolitem action='cut' />"
        "	<toolitem action='copy' />"
        "	<toolitem action='paste' />"
        "	</toolbar>"
        "</ui>"
        ;

    App::ui_manager()->add_ui_from_string(ui_info);

    action_group_new_layers->set_sensitive(false);

    set_toolbar(*dynamic_cast<Gtk::Toolbar*>(App::ui_manager()->get_widget("/toolbar-layer")));


}

Dock_Layers::~Dock_Layers()
{
    delete layer_action_manager;
}

void
Dock_Layers::init_canvas_view_vfunc(etl::loose_handle<CanvasView> canvas_view)
{
    Glib::RefPtr<LayerTreeStore> layer_tree_store;
    layer_tree_store = LayerTreeStore::create(canvas_view->canvas_interface());

    canvas_view->set_tree_model(get_name(), layer_tree_store);

    // layer_tree is registred thrue CanvasView::set_ext_widget
    // and will be deleted during CanvasView::~CanvasView()
    // \see CanvasView::set_ext_widget
    // \see CanvasView::~CanvasView
    LayerTree* layer_tree(new LayerTree());
    layer_tree->set_time_adjustment(canvas_view->time_adjustment());

    layer_tree->signal_edited_value().connect(
        sigc::hide_return(
            sigc::bind(sigc::mem_fun(*canvas_view->canvas_interface(), &synfigapp::CanvasInterface::change_value), false)
        )
    );

    // (a) should be before (b), (b) should be before (c)
    canvas_view->set_ext_widget(get_name() + "_cmp", layer_tree);
    canvas_view->set_ext_widget(get_name(), &layer_tree->get_layer_tree_view());
    canvas_view->set_ext_widget("params", &layer_tree->get_param_tree_view());

    layer_tree->set_model(layer_tree_store);
    canvas_view->set_tree_model("params", layer_tree->get_param_tree_view().get_model());


    // Hide the time bar
    if (canvas_view->get_canvas()->rend_desc().get_time_start() == canvas_view->get_canvas()->rend_desc().get_time_end()) {
        canvas_view->hide_timebar();
    }

    layer_tree_store->rebuild();
    present();
}

void
Dock_Layers::changed_canvas_view_vfunc(etl::loose_handle<CanvasView> canvas_view)
{
    if (canvas_view) {
        Gtk::Widget* tree_view(canvas_view->get_ext_widget(get_name()));

        add(*tree_view);
        tree_view->show();
        action_group_new_layers->set_sensitive(true);

        if (layer_action_manager) {
            layer_action_manager->set_layer_tree(dynamic_cast<LayerTree*>(canvas_view->get_ext_widget(get_name() + "_cmp")));
            layer_action_manager->set_canvas_interface(canvas_view->canvas_interface());
            layer_action_manager->refresh();
        }
    } else {
        action_group_new_layers->set_sensitive(false);

        if (layer_action_manager) {
            layer_action_manager->clear();
            layer_action_manager->set_canvas_interface(0);
            layer_action_manager->set_layer_tree(0);
        }

        clear_previous();
    }
}

void
Dock_Layers::add_layer(synfig::String id)
{
    etl::loose_handle<CanvasView> canvas_view(get_canvas_view());

    if (canvas_view) {
        canvas_view->add_layer(id);
    }
}